Variable audio frequency control device



FIG. 1 is a perspective view of a variable audio frequency control device showing my new design;

FIG. 2 is a front view thereof;

FIG. 3 is a rear view thereof;

FIG. 4 is a left side elevational view thereof;

FIG. 5 is a right side elevational view thereof;

FIG. 6 is a top plan view thereof; and,

FIG. 7 is a bottom side elevational view thereof. 

CLAIM The ornamental design for a variable audio frequency control device, as shown. 